function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}


function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);


/* Functions that swaps images. */
function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

/* Functions that handle preload. */
function MM_preloadImages() { //v3.0
 var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
   var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
   if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

/* Función de búsquedas. */
function MM_jumpMenu(targ,selObj,restore){ //v3.0
	var valorSel = selObj.options[selObj.selectedIndex].value;
	if(valorSel != ""){
		eval(targ + ".location='resultados.php?rubros=" + valorSel + "'");
  		if (restore) selObj.selectedIndex=0;
	}else{
		return false;
	}
   
}

function zoomText(tipo){
	//inicializaciones
	obj=document.getElementById("lupa");
	if (obj.style.fontSize==""){
		obj.style.fontSize="100%";
	}
	actual=parseInt(obj.style.fontSize);
	incremento=20;
	
	//operacion
	if(tipo=="normal"){
		obj.style.fontSize="100%";
	}
	if(tipo=="aumentar"){
		valor=actual+incremento;
		obj.style.fontSize=valor+"%";
	}
	if(tipo=="disminuir"){
		valor=actual-incremento;
		obj.style.fontSize=valor+"%";
	}
}

function validate() {
	valorRubros = form1.rubros.value;
		if (valorRubros == '') {
			alert('Debe elegir un Rubro.');
			form1.rubros.focus();
			/*event.returnValue=false;*/
			return false;
		}
}

function imprimir(){
if (window.print)
    window.print();
return false;
}